How are white light scanners?

Thanks for the informative posts. I haven't had any hands on with the Lava ST scanner. I did sit in on a presentation by Origin up at Lab Day East. Their software seemed very user friendly. I had a chance to visit with the reps at Dentsply over in York PA and worked with the 3 shape scanner and it's software. The 3 shape is a great scanner with great software but comes at a price especially for small labs.